Alexandra Alex Vause is an inmate at Litchfield Penitentiary and the on-and-off lover of main character Piper Chapman. She is portrayed by Laura Prepon. Alex's character is based on Nora (in reality named Catherine Cleary Wolters) in the memoir, Orange is the New Black: My Year in a Womenâs Prison.
On 1 January 1905, the IRN created the world's first operational submarine fleet around these seven submarines. The first combat patrol sent out by the newly created IRN submarine fleet occurred on 14 February 1905 and was carried out by Delfin and Som, with each patrol normally lasting about 24 hours.
By the mid 18th century, over a dozen patents for submarines/submersible boats had been granted in England. In 1747, Nathaniel Symons patented and built the first known working example of the use of a ballast tank for submersion. His design used leather bags that could fill with water to submerge the craft.